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What is this Yellow/Orange color in Quartz rock? Answered

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Citrine is superheated amethyst, and that doesn't look right. Also doesn't look quite right for iron oxide staining, since iron oxide is what we commonly call rust, and it's often closer to an actual rust color on quartz, too, though not always. There are many websites and books that give better information, and community college geology departments are really good for answering these questions.You may not find much on websites, because most of that info focus on crystalline quartz (mainly higher quality stuff), and agate/jasper under cryptocrystalline, and most don't touch on the white quartz "chunk rock" you've got there. Hope this is helpful!-Mike